palisade parenchyma

noun Botany.
  1. the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting the primary area of photosynthesis.

Origin of palisade parenchyma

First recorded in 1880–85
Also called palisade, palisade mesophyll.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018